Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

ACA5E5

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N914DU · BOEING 737-900 · operated by DELTA AIR LINES INC

Hex
ACA5E5
Octal
53122745
Decimal
11,314,661
Country
US
Tail
N914DU
Type
B739
No current signal · last broadcast Jul 26, 21:10 UTC
Flights observed
537
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 21:10 UTC

Last known position

Most recent position reported by Mode-S ACA5E5.

Country allocation

The ICAO 24-bit address ACA5E5 falls within the block assigned to United States (US) by ICAO Annex 10, Volume III. Every aircraft registered in United States receives a permanent address from this block at the time of registration; the address stays with the airframe even if the aircraft is re-registered to a different operator within the country.

Callsign history 20 distinct

Callsign Airline Flights Last seen
DAL1913 Delta Air Lines 17 2026-07-24
DAL3013 - 8 2026-07-09
DAL1082 - 7 2026-07-01
DAL2180 Delta Air Lines 6 2026-04-17
DAL1995 - 6 2026-06-27
DAL937 Delta Air Lines 5 2026-06-25
DAL532 Delta Air Lines 5 2026-04-14
DAL2925 Delta Air Lines 5 2026-06-09
DAL2329 - 5 2026-07-06
DAL2254 Delta Air Lines 5 2026-06-05
DAL2074 - 5 2026-07-14
DAL874 Delta Air Lines 4 2026-05-14
DAL656 - 4 2026-06-26
DAL3109 - 4 2026-07-10
DAL2986 - 4 2026-06-13
DAL2628 Delta Air Lines 4 2026-06-13
DAL2612 Delta Air Lines 4 2026-06-05
DAL2301 Delta Air Lines 4 2026-06-01
DAL2238 Delta Air Lines 4 2026-06-05
DAL2237 Delta Air Lines 4 2026-06-01

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 DAL508 SLC → JFK Jul 26, 16:45 UTCJul 26, 21:10 UTC4h 25m
2026-07-26 DAL1598 YYZ → ATL Jul 26, 14:15 UTCJul 26, 15:20 UTC1h 5m
2026-07-26 DAL1327 MIA → ATL Jul 26, 00:50 UTCJul 26, 05:10 UTC4h 20m
2026-07-25 DAL1911 CUN → DTW Jul 25, 19:00 UTCJul 25, 22:25 UTC3h 25m
2026-07-25 DAL578 DTW → CUN Jul 25, 14:30 UTCJul 25, 17:35 UTC3h 5m
2026-07-25 DAL2439 BNA → DTW Jul 25, 11:15 UTCJul 25, 12:25 UTC1h 10m
2026-07-25 DAL2439 BNA → DTW Jul 25, 11:15 UTCJul 25, 12:21 UTC1h 6m
2026-07-25 DAL2126 DTW → BNA Jul 25, 01:50 UTCJul 25, 02:55 UTC1h 5m
2026-07-24 DAL1913 DTW → SJU Jul 24, 20:25 UTCJul 24, 22:45 UTC2h 20m
2026-07-24 DAL1913 DTW → SJU Jul 24, 18:35 UTCJul 24, 18:45 UTC10m
2026-07-24 DAL1913 DTW → SJU Jul 24, 13:00 UTCJul 24, 16:50 UTC3h 50m
2026-07-24 DAL810 SEA → BOS Jul 24, 06:35 UTCJul 24, 10:05 UTC3h 30m
2026-07-24 DAL637 BOS → AUS Jul 24, 00:00 UTCJul 24, 03:55 UTC3h 55m
2026-07-23 DAL637 BOS → AUS Jul 23, 18:25 UTCJul 23, 21:50 UTC3h 25m
2026-07-23 DAL354 JFK → SLC Jul 23, 11:20 UTCJul 23, 16:45 UTC5h 25m
2026-07-23 DAL354 JFK → SLC Jul 23, 11:19 UTCJul 23, 16:29 UTC5h 10m
2026-07-22 DAL489 SEA → BOS Jul 22, 23:40 UTCJul 23, 03:57 UTC4h 17m
2026-07-22 DAL489 SEA → BOS Jul 22, 23:45 UTCJul 23, 03:55 UTC4h 10m
2026-07-22 DAL728 MIA → BOS Jul 22, 16:45 UTCJul 22, 21:00 UTC4h 15m
2026-07-22 DAL728 MIA → BOS Jul 22, 16:43 UTCJul 22, 21:05 UTC4h 22m
2026-07-22 DAL2289 SLC → DTW Jul 22, 12:10 UTCJul 22, 15:00 UTC2h 50m
2026-07-22 DAL1483 DTW → PHX Jul 22, 02:30 UTCJul 22, 03:55 UTC1h 25m
2026-07-22 DAL1483 DTW → PHX Jul 22, 02:28 UTCJul 22, 03:52 UTC1h 24m
2026-07-21 DAL1161 DFW → LGA Jul 21, 23:30 UTCJul 22, 01:05 UTC1h 35m
2026-07-21 DAL1452 GEG → SLC Jul 21, 20:35 UTCJul 21, 21:55 UTC1h 20m
2026-07-21 DAL1452 SLC → GEG Jul 21, 17:40 UTCJul 21, 18:55 UTC1h 15m
2026-07-21 DAL2023 ATL → PVD Jul 21, 11:45 UTCJul 21, 16:00 UTC4h 15m
2026-07-21 DAL2075 PHL → ATL Jul 21, 06:05 UTCJul 21, 09:15 UTC3h 10m
2026-07-21 DAL2075 PHL → ATL Jul 21, 06:05 UTCJul 21, 09:39 UTC3h 34m
2026-07-21 DAL2652 JFK → MCO Jul 21, 02:35 UTCJul 21, 04:00 UTC1h 25m
2026-07-20 DAL442 LAX → SFO Jul 20, 20:30 UTCJul 21, 01:05 UTC4h 34m
2026-07-20 DAL2236 BOS → PBI Jul 20, 16:00 UTCJul 20, 18:50 UTC2h 50m
2026-07-20 DAL1535 - Jul 20, 13:05 UTCJul 20, 14:15 UTC1h 10m
2026-07-20 DAL1535 PHX → SLC Jul 20, 13:01 UTCJul 20, 14:13 UTC1h 12m
2026-07-20 DAL1496 PBI → ATL Jul 20, 04:50 UTCJul 20, 06:00 UTC1h 10m
2026-07-19 DAL2607 MSP → SLC Jul 19, 23:50 UTCJul 20, 02:15 UTC2h 25m
2026-07-19 DAL2400 RSW → MSP Jul 19, 18:40 UTCJul 19, 22:00 UTC3h 20m
2026-07-19 DAL2400 MSP → RSW Jul 19, 14:20 UTCJul 19, 17:15 UTC2h 55m
2026-07-18 DAL2409 JFK → DFW Jul 18, 22:50 UTCJul 19, 01:20 UTC2h 30m
2026-07-17 DAL2396 - Jul 17, 19:49 UTCJul 17, 22:10 UTC2h 20m
2026-07-17 DAL2396 - Jul 17, 19:46 UTCJul 17, 22:04 UTC2h 18m
2026-07-17 DAL2396 LGA → PBI Jul 17, 16:04 UTCJul 17, 18:15 UTC2h 10m
2026-07-17 DAL2723 TPA → LGA Jul 17, 11:50 UTCJul 17, 14:00 UTC2h 10m
2026-07-17 DAL1355 - Jul 17, 00:14 UTCJul 17, 02:30 UTC2h 15m
2026-07-16 DAL618 CUN → DTW Jul 16, 18:10 UTCJul 16, 21:25 UTC3h 15m
2026-07-16 DAL619 - Jul 16, 13:30 UTCJul 16, 16:55 UTC3h 25m
2026-07-15 DAL1911 CUN → DTW Jul 15, 19:10 UTCJul 15, 22:25 UTC3h 15m
2026-07-15 DAL578 - Jul 15, 14:30 UTCJul 15, 17:35 UTC3h 5m
2026-07-14 DAL717 SFO → DTW Jul 14, 22:05 UTCJul 15, 02:10 UTC4h 4m
2026-07-14 DAL2074 MSP → SFO Jul 14, 17:05 UTCJul 14, 20:25 UTC3h 20m

About Mode-S

A Mode-S transponder code (also called an "ICAO 24-bit address" or "hex code") is a 6-character hexadecimal identifier permanently assigned to an aircraft when it's first registered. Unlike callsigns (which change with each flight) or registrations (which can change if an aircraft is sold internationally), the Mode-S address stays with the airframe for the life of the aircraft in that country.

Every ADS-B transmission from an aircraft includes its Mode-S address, making it the most reliable way to identify a specific airframe. Flight-tracking services like Apparatus use the Mode-S address as the primary key for tying position broadcasts, callsigns, and ownership records together.

Prefer a tail-number view? See the N914DU page for operator, model, and routing details .

Mode-S ACA5E5 frequently asked

What is Mode-S code ACA5E5?
ACA5E5 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N914DU.
Where is Mode-S ACA5E5 registered?
Mode-S code ACA5E5 is allocated to United States (US). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is ACA5E5 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 21:10 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex ACA5E5, octal 53122745, decimal 11,314,661.
What flights does ACA5E5 operate?
Mode-S ACA5E5 has broadcast 20 distinct callsigns, including DAL1913, DAL3013, DAL1082, DAL2180, DAL1995.